Home / 389,659.71-537,820.05-228,566.66

Finding the Fourth Proportional to 389,659.71, 537,820.05 and 228,566.66

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Solution

The fourth proportional to 389,659.71, 537,820.05 and 228,566.66 is: 315,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,659.71 : 537,820.05 = 228,566.66 : x
  2. Step 2: Convert to fraction form
    389,659.71/537,820.05 = 228,566.66/x
  3. Step 3: Cross multiply
    389,659.71x = 537,820.05 × 228,566.66
  4. Step 4: Simplify right side
    389,659.71x = 122,927,733,702.80
  5. Step 5: Solve for x
    x = 122,927,733,702.80/389,659.71
  6. Step 6: Final answer
    x = 315,474.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.